3 files changed, 29 insertions, 2 deletions

diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index c6ffbbe5a6c0..d78c05e693f7 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -1253,7 +1253,7 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
                         if (dev->wd_timeout)
                                 *slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
                         else
-                                *slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
+                                *slots -= mei_data2slots(MEI_WD_PARAMS_SIZE);
                 }
         }
         if (dev->stop)
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 092330208869..7422c7652845 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -925,6 +925,27 @@ static struct miscdevice  mei_misc_device = {
 };
 
 /**
+ * mei_quirk_probe - probe for devices that doesn't valid ME interface
+ * @pdev: PCI device structure
+ * @ent: entry into pci_device_table
+ *
+ * returns true if ME Interface is valid, false otherwise
+ */
+static bool __devinit mei_quirk_probe(struct pci_dev *pdev,
+                                const struct pci_device_id *ent)
+{
+        u32 reg;
+        if (ent->device == MEI_DEV_ID_PBG_1) {
+                pci_read_config_dword(pdev, 0x48, &reg);
+                /* make sure that bit 9 is up and bit 10 is down */
+                if ((reg & 0x600) == 0x200) {
+                        dev_info(&pdev->dev, "Device doesn't have valid ME Interface\n");
+                        return false;
+                }
+        }
+        return true;
+}
+/**
  * mei_probe - Device Initialization Routine
  *
  * @pdev: PCI device structure
@@ -939,6 +960,12 @@ static int __devinit mei_probe(struct pci_dev *pdev,
         int err;
 
         mutex_lock(&mei_mutex);
+
+        if (!mei_quirk_probe(pdev, ent)) {
+                err = -ENODEV;
+                goto end;
+        }
+
         if (mei_device) {
                 err = -EEXIST;
                 goto end;
diff --git a/drivers/misc/ti-st/st_ll.c b/drivers/misc/ti-st/st_ll.c
index 1ff460a8e9c7..93b4d67cc4a3 100644
--- a/drivers/misc/ti-st/st_ll.c
+++ b/drivers/misc/ti-st/st_ll.c
@@ -87,7 +87,7 @@ static void ll_device_want_to_wakeup(struct st_data_s *st_data)
         /* communicate to platform about chip wakeup */
         kim_data = st_data->kim_data;
         pdata = kim_data->kim_pdev->dev.platform_data;
-        if (pdata->chip_asleep)
+        if (pdata->chip_awake)
                 pdata->chip_awake(NULL);
 }